abuse

I have been asked to write a letter regarding my grandson, age 4yrs, of the emotional, phisical and possible sexual abuse which I am highlighting concern about to Social Services. I have dates and behaviour changes and many other reasons to raise concern, his mother Nicola, is an Alcoholic and drinks to excess until she blacks out, therefore leaving my grandson in immediate danger and vaunrability. I can elaborate moreso if I have someone professionaly to put it in writing as requested. PLEASE HELP!